This is one of the major issues with selling books, I hear. There's very little profit margin on the books themselves, so most stores have to make up the differ

This is one of the major issues with selling books, I hear. There's very little profit margin on the books themselves, so most stores have to make up the difference with higher-margin items like a coffee shop, swag, etc. On the bright side, there's little risk involved, since you're generally allowed to ship back any unsold books (or just their covers) for a full refund.